I put 7100 on a second partition on my p.c. so I could test it out since I have had to revert to 7000 paritition on this machine on all builds after 7022 due to internet loss bug. However I have solved the problem and am now ready to move the second partition over onto the first one, which I have done before with Windows 7 since it has a hidden partition with its boot manager and so it doesn't rely on C: drive to boot.
Normally I would use Disk Management to delete the first partiition, then use Partition Magic Pro 9 to move the second partition over onto the first one's free space. It has worked several times so far, but the problem is that I am not sure I want to have as a long-term main partition one which is labeled "F." Is this going to be a problem somewhere down the line? I cannot find a way to change the drive letter on a primary system partition like this to letter "C" which is now available. Any suggestions or do I just need to clean install?